Hinny is a hybrid of

A hinny is a domestic equine hybrid, which is an offspring of a male horse (a stallion) and a female donkey (a jenny). It is the reciprocal cross to the more common mule, which is the product of a male donkey (a jack) and a female horse (a mare).

Both mules and hinnies are sterile, as they inherit an uneven number of chromosomes from their parents. It makes proper gamete formation challenging. These hybrid offspring are known for their unique characteristics, strength, and utility in various tasks, but they are incapable of producing viable offspring.